Essential Duties and Responsibilities: Fieldwork such as soil, surface water, and groundwater sampling, drilling and contractor oversight, aquifer testing, geophysical investigations, and remediation system O&M; Chemical data and contaminant fate & transport evaluation; Groundwater and soil remedy evaluation, cost estimation, and implementation; Aquifer testing and hydrogeologic data analyses; Groundwater modeling and 3D data visualization; Environmental due diligence, regulatory compliance services, and permitting; Data analysis, including preparing maps, tables, and figures; and. Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.